Playlist Machinery - Tools that help you create & organize your Spotify playlists
Move to Apple Music - Convert your Spotify playlists for Apple Music
Playmoss - Create playlists from YouTube, Vimeo and SoundCloud
Apple Music Web App - Apple Music is now available to stream on the web
podsync - Simple and free service that lets you listen to any YouTube or Vimeo channels, playlists or user videos in podcast format
FreeYourMusic - Migrate from and to any music services